A group of tissues working together is an organ.
ANSWER:
A. an organ
Answer:
Oxygen is moved around the body of an echinoderm in its C. water vascular system.
Answer:erosion?
Explanation:i think it is that because if there is a erosion ever so slightly at a mountain it would one day fall and create a landslide
Wouldn’t the answer just be C?
In a Solid, particles are tighly packed together.
In a Liquid, they are farther apart
In a Gas, they are even farther apart.
*Melting = Liquid
*Freezing = Solid
* (E)vaporation = Gas
